Browsing by Author "TSAY, YL"

Now showing 1 - 9 of 9

COMBINED HEAT AND MASS-TRANSFER IN LAMINAR GAS-STREAM FLOWING OVER AN EVAPORATING LIQUID-FILM
(1990)
TSAY, YL
;
LIN, TF
;
交大名義發表
;
機械工程學系
;
National Chiao Tung University
COMBINED HEAT AND MASS-TRANSFER IN TURBULENT NATURAL-CONVECTION BETWEEN VERTICAL PARALLEL PLATES
(1989-08-01)
YAN, WM
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TSAY, YL
;
LIN, TF
;
交大名義發表
;
機械工程學系
COOLING OF A FALLING LIQUID-FILM THROUGH INTERFACIAL HEAT AND MASS-TRANSFER
(1990-09-01)
TSAY, YL
;
LIN, TF
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YAN, WM
;
交大名義發表
;
機械工程學系
EFFECTS OF WETTED WALLS ON LAMINAR NATURAL-CONVECTION BETWEEN VERTICAL PARALLEL PLATES WITH ASYMMETRIC HEATING
(1990-01-01)
YAN, WM
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TSAY, YL
;
LIN, TF
;
交大名義發表
;
機械工程學系
EVAPORATION OF A HEATED FALLING LIQUID-FILM INTO A LAMINAR GAS-STREAM
(1995-07-01)
TSAY, YL
;
LIN, TF
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機械工程學系
;
Department of Mechanical Engineering
Heat and mass transfer characteristics for a falling liquid film evaporating into a gas stream were investigated. The liquid water film falls along a vertical plate subjected to a uniform heat flux. In the numerical analysis the respective governing equations for the liquid film and gas stream were solved together. An experimental system was also set up to measure the heat transfer coefficient along the wetted wall for various thermal and flow conditions. The measured data are in good agreement with the numerical predictions. It is observed that the latent heat transport connected with the vaporization of the liquid film plays an important role in the transfer processes. A correlation of the Nusselt number for heat transfer from the wetted wall to the liquid film is proposed.
EVAPORATIVE COOLING OF LIQUID-FILM THROUGH INTERFACIAL HEAT AND MASS-TRANSFER IN A VERTICAL CHANNEL .1. EXPERIMENTAL-STUDY
(1991-04-01)
YAN, WM
;
LIN, TF
;
TSAY, YL
;
交大名義發表
;
機械工程學系
An experimental study is performed to study the evaporative cooling of the falling liquid film through interfacial heat and mass transfer in a vertical channel. The measured wall temperature, heat and mass transfer rates are specifically presented for the systems with water film evaporation and ethanol film evaporation over wide ranges of liquid mass flow rate, channel width and liquid inlet temperature. The results show that the influences of the evaporative latent heat transfer on the cooling of the liquid film depend largely on the inlet liquid film temperature and liquid mass rate. Effective evaporative cooling results for a higher inlet liquid film temperature and a smaller liquid mass flow rate.
EXPERIMENTAL INVESTIGATION OF GEYSER BOILING IN AN ANNULAR 2-PHASE CLOSED THERMOSIPHON
(1995-01-01)
LIN, TF
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LIN, WT
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TSAY, YL
;
WU, JC
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SHYU, RJ
Geyser boiling in a vertical annular two-phase closed thermosyphon was experimentally studied. The effects of the heat load, condenser temperature, degree of liquid fill and length of the evaporator on the characteristics of the geyser boiling were investigated in detail for both water and ethanol as working fluids. Flow visualization at light heat load clearly illustrates the process of geyser boiling. It also indicates that it occurs more frequently and irregularly at high heat load. The wall temperature measurement dictates that the period of geyser boiling is shorter at a higher heat load, a shorter evaporator length and a smaller liquid fill. Additionally, the heat transfer coefficient is found to increase approximately linearly with the heat load on a logarithmic scale. An empirical equation was proposed to correlate the data for the heat transfer coefficient. A criterion was suggested for the occurrence of geyser boiling based on the present data.
SIMULTANEOUS HEAT AND MASS-TRANSFER IN LAMINAR MIXED CONVECTION FLOWS BETWEEN VERTICAL PARALLEL PLATES WITH ASYMMETRIC HEATING
(1989-09-01)
YAN, WM
;
TSAY, YL
;
LIN, TF
;
交大名義發表
;
機械工程學系
TRANSIENT CONJUGATED HEAT-TRANSFER IN LAMINAR PIPE FLOWS
(1989-04-01)
YAN, WM
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TSAY, YL
;
LIN, TF
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交大名義發表
;
機械工程學系